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concentration
Possible treatments on amethyst:
Weight: Approx 18g
Fracture: Irregular to subconchoidal
Size: 10 x 14mm
Perles en fluorite / fluorine bleu concentrationFluorite beads. Colors: Green and purple Size: 5 x 8mm Country of origin: China Gemological information about fluorite: Possible color: Blue, brown, orange, pink Density: Between 3. 18 and 3. 25 Hardness: 4 Crystal system: Cubic Fracture: Conchoidal, irregular, brittle Cleavage: Along the faces of the octahedron Polariscope: Isotropic, does not restore or polarization anomalies Refractive index: 1. 434 Birefringence: None Chelsea Filter: Green stones
